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27cdfa03b5
m32c_md_end attempted to pad out a code section with nops, but this was just plain wrong in many ways: - The padding didn't happen at all if the last section emitted wasn't a code section. - The padding went to the wrong place if subsections were used, and the last subseg used wasn't the highest numbered subseg. - Padding wasn't added to all code sections. - If the last section was empty, it was padded to 4 bytes. - The padding didn't go to a 4-byte alignment boundary, instead it effectively made the last instruction 4 bytes in size. - The padding didn't take into account that code sections may have contents other than machine instructions. So, rip it out and handle nop padding properly, also fixing .align .balign/.p2align in the middle of code. gas/ * config/tc-m32c.c (insn_size): Delete static var. (md_begin): Don't set it. (m32c_md_end): Delete. (md_assemble): Add insn_size auto var. * config/tc-m32c.h (md_end): Don't define. (m32c_md_end): Delete. (NOP_OPCODE, HANDLE_ALIGN, MAX_MEM_FOR_RS_ALIGN_CODE): Define. * testsuite/gas/all/align.d: Remove m32c from notarget list. * testsuite/gas/all/incbin.d: Likewise. * testsuite/gas/elf/dwarf2-11.d: Likewise. * testsuite/gas/macros/semi.d: Likewise. * testsuite/gas/all/gas.exp (do_comment): Similarly. ld/ * testsuite/ld-scripts/fill.d: Don't xfail m32c * testsuite/ld-scripts/fill16.d: Likewise.
89 lines
3.2 KiB
C
89 lines
3.2 KiB
C
/* tc-m32c.h -- Header file for tc-m32c.c.
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Copyright (C) 2004-2019 Free Software Foundation, Inc.
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This file is part of GAS, the GNU Assembler.
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GAS is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GAS is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#define TC_M32C
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#define LISTING_HEADER "M16C/M32C GAS "
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/* The target BFD architecture. */
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#define TARGET_ARCH bfd_arch_m32c
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#define TARGET_FORMAT "elf32-m32c"
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#define TARGET_BYTES_BIG_ENDIAN 0
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#define md_start_line_hook m32c_start_line_hook
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extern void m32c_start_line_hook (void);
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/* call md_pcrel_from_section, not md_pcrel_from */
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long md_pcrel_from_section (struct fix *, segT);
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#define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section (FIXP, SEC)
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/* Permit temporary numeric labels. */
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#define LOCAL_LABELS_FB 1
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#define DIFF_EXPR_OK /* .-foo gets turned into PC relative relocs */
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/* We don't need to handle .word strangely. */
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#define WORKING_DOT_WORD
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#define md_apply_fix m32c_apply_fix
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extern void m32c_apply_fix (struct fix *, valueT *, segT);
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#define tc_fix_adjustable(fixP) m32c_fix_adjustable (fixP)
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extern bfd_boolean m32c_fix_adjustable (struct fix *);
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/* When relaxing, we need to emit various relocs we otherwise wouldn't. */
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#define TC_FORCE_RELOCATION(fix) m32c_force_relocation (fix)
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extern int m32c_force_relocation (struct fix *);
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#define TC_CONS_FIX_NEW(FRAG, WHERE, NBYTES, EXP, RELOC) \
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m32c_cons_fix_new (FRAG, WHERE, NBYTES, EXP, RELOC)
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extern void m32c_cons_fix_new (fragS *, int, int, expressionS *,
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bfd_reloc_code_real_type);
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extern const struct relax_type md_relax_table[];
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#define TC_GENERIC_RELAX_TABLE md_relax_table
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extern void m32c_prepare_relax_scan (fragS *, offsetT *, relax_substateT);
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#define md_prepare_relax_scan(FRAGP, ADDR, AIM, STATE, TYPE) \
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m32c_prepare_relax_scan(FRAGP, &AIM, STATE)
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/* Values passed to md_apply_fix don't include the symbol value. */
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#define MD_APPLY_SYM_VALUE(FIX) 0
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/* Call md_pcrel_from_section(), not md_pcrel_from(). */
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#define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section (FIXP, SEC)
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extern long md_pcrel_from_section (struct fix *, segT);
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/* We need a special version of the TC_START_LABEL macro so that we
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allow the :Z, :S, :Q and :G suffixes to be
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parsed as such. We need to be able to change the contents of the
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var storing what was at the NUL delimiter. */
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#define TC_START_LABEL(STR, NUL_CHAR, NEXT_CHAR) \
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(NEXT_CHAR == ':' && !m32c_is_colon_insn (STR, &NUL_CHAR))
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extern int m32c_is_colon_insn (char *, char *);
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#define H_TICK_HEX 1
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#define NOP_OPCODE (bfd_get_mach (stdoutput) == bfd_mach_m32c ? 0xde : 0x04)
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#define HANDLE_ALIGN(fragP)
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#define MAX_MEM_FOR_RS_ALIGN_CODE 1
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